Tujuan Dari Penelitian Ini Adalah Untuk Mengetahui Kandungan Kitosan Pada Keong Bakau Di Kawasan Konservasi Mangrove Kelurahan Pamusian Kota Tarakan. Pengambilan Dan Pengukuran Cangkang Dilakukan Di Lokasi Penelitian, Sedangkan Pengujian Kandungan Kitosan Dilakukan Di Laboratorim Kualitas Air Fakultas Perikanan Dan Ilmu Kelautan Universitas Borneo Tarakan. Penelitian Ini Dilaksanakan Di Kawasan Konservasi Mangrove Kelurahan Pamusian Kota Tarakan Dari Bulan Desember 2010 – Mei 2011 Meliputi Kegiatan Persiapan, Pelaksanaan Penelitian (Pengumpulan Data, Pengolahan Serta Analisis Data Dan Penyusunan Laporan. Berdasarkan Hasil Dari Penelitian Yang Telah Dilakukan, Diketahui Bahwa Kandungan Kitosan Dalam Cangkang Keong Bakau Berjumlah 3,385 Gram Dan Setiap Penambahan Panjang Cangkang Sebesar 1 Cm Akan Menambah Kandungan Kitosan Didalamnya Sebanyak 0.839 Gram. Lebih Lanjut, Hasil Uji Regresi Linier Sederhana Menunjukan Bahwa Ukuran Cangkang Keong Bakau Mempengaruhi Kandungan Kitosan Didalamnya, Dengan Kontribusi Sebesar 85,7% Dan Sisanya 14,3% Dipengaruhi Oleh Faktor Lain.
Keyword: Kandungan Kitosan, Telescopium Sp, Kawasan Konservasi Mangrove

Aim Of This Research Is To Know The Chitosan Content On Telescope Snail (Telescopium Sp) In Mangrove Conservation Area Of Kelurahan Pamusian, Tarakan City. Sample Was Determined And Been Measured In The Location (In Situ), And The Chitosan Content Test Was Done In Water Quality Laboratorium Of Marine And Fisheries Faculty Of Borneo Tarakan University. The Result Was Conducted In Mangrove Conservation Area Of Kelurahan Pamusian, Tarakan City From December 2010 To May 2011 Include Preparation, Implementation Research (Data Collection, Processing And Data Analysis And Report). Based On Result Of The Research, Known That Chitosan Content On Each Shells Of Telescope Snail Was 3,385 Grams And Every 1 Cm Wide Addition Of Shell Would Increased The Chitosan That Consist On It Amount To 0.839 Grams. Furthermore, The Result Of Regression Linear Test Showed That Size Of Telescope Snail Shell Affecting Chitosan Content In It, With Contribution 85,7% And The Remain 14,3% Are Influenced By Other Factors. Keyword: Chitosan Content, Telescopium Sp, Mangrove Conservation